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Chemical Senses 20: 211-219,
© 1995

research-article

Prediction of Sweetness Intensity for Equiratio Aspartame/Sucrose Mixtures

Hendrik N.J. Schifferstein

Department of Marketing and Marketing Research, Agricultural University Bomenweg 2, 6703 HD Wageningen, The Netherlands

Correspondence to be sent to: Hendrik N.J. Schifferstein, Department of Marketing and Marketing Research, Agricultural University, Bomenweg 2, 6703 HD Wageningen, The Netherlands

The Equiratio Mixture Model predicts the responses to a series of equiratio mixtures on the basis of the psychophysical functions for the unmixed components. The model predicts the sweetness of mixtures of sugars and sugar-alcohols successfully, but is unable to predict mixture intensity for substances with different dynamic ranges. In this paper, the equi-intensity concept is introduced in the Equiratio Mixture Model by transforming the physical concentrations expressed in molarity into units that produce approximately equi-intense sensations. An empirical test using aspartame/sucrose mixtures shows that the modified Equiratio Mixture Model yields good predictions of mixture intensities.


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